Antihydrogen-hydrogen elastic scattering at thermal energies using an atomic-orbital technique

Journal Article · Thu May 01 04:00:00 EDT 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.052509· OSTI ID:20636376

Sinha, Prabal K; Chaudhuri, Puspitapallab; Ghosh, A S ^[1]

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1. Department of Physics, Bangabasi College, 19, Raj Kumar Chakravorty Sarani, Kolkata 700 009 (India)

In view of the recent interest in the trapping of antihydrogen atom H(bar sign), at very low temperatures, H-bar-H scattering has been investigated at low incident energies using a close-coupling model with the basis set H-bar(1s,2s,2p-bar)+H(1s,2s,2p-bar). The predicted s-wave elastic phase shifts, scattering length, and effective range are in a good agreement with the other recent predictions of Jonsell et al. and of Armour and Chamberlain. The results indicate that the atomic orbital expansion model is suitable to study the H-bar-H scattering at ultracold temperatures.

• OSTI ID: 20636376
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM-ATOM COLLISIONS
COUPLING
ELASTIC SCATTERING
EXPANSION
HADRONIC ATOMS
HYDROGEN
HYDROGEN 1
PHASE SHIFT
RADIATION PRESSURE
S WAVES
SCATTERING LENGTHS
TRAPPING